3 adjectives to describe sangs

The gray old harper sang to me, The waves roll so gayly

'It's a patriotic sang in honour,' Mrs. Pumpherston started to explain 'Ach, woman!'

In my extensive researches, for every single fact that seemed to favor the sexual selection theory I have found a hundred against it; and I have become more and more amazed at the extraordinary sang froid with which its advocates have ignored the countless facts that speak against it while boosting into prominence the very few that at first sight appear to support it.

3 adjectives to describe  sangs